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- /* courtesy Ian Darwin and Geoff Collyer, Softquad Inc. */
- digraph unix {
- size="6,6";
- node [color=lightblue2, style=filled];
- "5th Edition" -> "6th Edition";
- "5th Edition" -> "PWB 1.0";
- "6th Edition" -> "LSX";
- "6th Edition" -> "1 BSD";
- "6th Edition" -> "Mini Unix";
- "6th Edition" -> "Wollongong";
- "6th Edition" -> "Interdata";
- "Interdata" -> "Unix/TS 3.0";
- "Interdata" -> "PWB 2.0";
- "Interdata" -> "7th Edition";
- "7th Edition" -> "8th Edition";
- "7th Edition" -> "32V";
- "7th Edition" -> "V7M";
- "7th Edition" -> "Ultrix-11";
- "7th Edition" -> "Xenix";
- "7th Edition" -> "UniPlus+";
- "V7M" -> "Ultrix-11";
- "8th Edition" -> "9th Edition";
- "1 BSD" -> "2 BSD";
- "2 BSD" -> "2.8 BSD";
- "2.8 BSD" -> "Ultrix-11";
- "2.8 BSD" -> "2.9 BSD";
- "32V" -> "3 BSD";
- "3 BSD" -> "4 BSD";
- "4 BSD" -> "4.1 BSD";
- "4.1 BSD" -> "4.2 BSD";
- "4.1 BSD" -> "2.8 BSD";
- "4.1 BSD" -> "8th Edition";
- "4.2 BSD" -> "4.3 BSD";
- "4.2 BSD" -> "Ultrix-32";
- "PWB 1.0" -> "PWB 1.2";
- "PWB 1.0" -> "USG 1.0";
- "PWB 1.2" -> "PWB 2.0";
- "USG 1.0" -> "CB Unix 1";
- "USG 1.0" -> "USG 2.0";
- "CB Unix 1" -> "CB Unix 2";
- "CB Unix 2" -> "CB Unix 3";
- "CB Unix 3" -> "Unix/TS++";
- "CB Unix 3" -> "PDP-11 Sys V";
- "USG 2.0" -> "USG 3.0";
- "USG 3.0" -> "Unix/TS 3.0";
- "PWB 2.0" -> "Unix/TS 3.0";
- "Unix/TS 1.0" -> "Unix/TS 3.0";
- "Unix/TS 3.0" -> "TS 4.0";
- "Unix/TS++" -> "TS 4.0";
- "CB Unix 3" -> "TS 4.0";
- "TS 4.0" -> "System V.0";
- "System V.0" -> "System V.2";
- "System V.2" -> "System V.3";
- }
-
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